貴陽(yáng)201大廈抗連續(xù)倒塌分析
林超偉1,2,王興法1,2,許波1,2,李開倫1,2 ,雷霆1,2 ,熊亮1,2
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林超偉1,2,王興法1,2,許波1,2,李開倫1,2 ,雷霆1,2 ,熊亮1,2(1 法國(guó)歐博建筑與城市規(guī)劃設(shè)計(jì)公司,深圳 518053; 2 深圳市博藝建筑工程設(shè)計(jì)有限公司,深圳 518053)[摘要]以貴陽(yáng)201大廈為例,采用MIDAS軟件對(duì)其子結(jié)構(gòu)的敏感構(gòu)件進(jìn)行線彈性拆桿分析,采取控制截面邊緣最大應(yīng)力的簡(jiǎn)化判定準(zhǔn)則,考察桿件1~4共4種單桿失效工況下結(jié)構(gòu)抗連續(xù)倒塌能力。對(duì)桿件1,2均失效后的子結(jié)構(gòu)進(jìn)行靜力非線性分析,驗(yàn)證框架作為子結(jié)構(gòu)第二道防線的可行性。研究結(jié)果表明,在不同敏感構(gòu)件失效情況下,子結(jié)構(gòu)整體具有多種傳力路徑,能實(shí)現(xiàn)內(nèi)力重分布,有較高的冗余度;子結(jié)構(gòu)框架能作為第二道防線,結(jié)構(gòu)整體具有較高的抵抗連續(xù)倒塌能力。[關(guān)鍵詞]連續(xù)倒塌;研究方法;評(píng)估方法;敏感構(gòu)件中圖分類號(hào):TU973-13,TU351文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2012)07-0032-04Research on resistance to progressive collapse of Guiyang 201 BuildingLin Chaowei1,2, Wang Xingfa1,2, Xu Bo1,2, Li Kailun1,2, Lei Ting1,2, Xiong Liang1,2(1 AUBE Conception Design Architecture Co., Ltd., Shenzhen 518053, China; 2 Shenzhen Boyi Construction Engineering & Design Co., Ltd., Shenzhen 518053, China)Abstract: Taking Guiyang 201 Building as an example, MIDAS software was adopted to analyze sensitive components through linear static alternate path method. Through the simplified rule of taking control of the section on the edge of the greatest stress, resistance to progressive collapse was studied when frame 1~4 remove respectively. A static non-linear analysis was carried out on sub-structure when frame 1~2 remove simultaneously in order to verify the feasibility of the framework as the second defensive line. Results show that the sub-structure can achieve internal weight redistribution through different load paths and has a high degree of redundancy when the different sensitive components fall. The overall structure has a good resistance to progressive collapse.Keywords: progressive collapse; research method; evaluation method; sensitive components作者簡(jiǎn)介:林超偉,碩士,一級(jí)注冊(cè)結(jié)構(gòu)工程師,Email:wei65125036@163.com。參考文獻(xiàn)[1]陸新征,李易,葉列平,等. 鋼筋混凝土框架結(jié)構(gòu)抗連續(xù)倒塌設(shè)計(jì)方法的研究[J]. 工程力學(xué), 2008, 25(S2): 150-157.[2]GSA 2003 Progressive collapse analysis and design guidelines for new federal office buildings and major modernization project [S]. Washington D C: the U.S. General Services Administration, 2003.[3]UFC 4-023-03 Design of structures to resist progressive collapse [S]. Washington D C: Department of Defense,USA, 2005.[4]王興法,林超偉,許波,等. 貴陽(yáng)201大廈結(jié)構(gòu)體系研究[J]. 建筑結(jié)構(gòu),2012,42(3):10-14,28.[5]日本鋼結(jié)構(gòu)協(xié)會(huì)、美國(guó)高層建筑和城市住宅理事會(huì). 高冗余度鋼結(jié)構(gòu)倒塌控制設(shè)計(jì)指南[M]. 陳以一,趙憲忠,譯. 上海:同濟(jì)大學(xué)出版社,2007.
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